Software Version 4.3.4

Email delivery to many local recipients improved
Invalid emails (often spam) do not remain in the queue
Detail improvements to the spam filter
Webmail security update
Improved security on Linux base system (IMP-3.2.5)
Update of Linux base services (dansguardian-2.8.0.2, php-4.3.8-2, postfix-2.0.18-2, SpamAssassin-3.0.0-pre4)